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- Title
Synthesis of 7,8-dihydro-6H-pyrazolo[5',1':3,4][1,2,4]-triazino[6,5- d][1,2]diazepin-6-one, a new heterocyclic system.
- Authors
Didenko, V. V.; Shikhaliev, Kh. S.; Ledenyova, I. V.
- Abstract
The article presents the method for constructing the 1,2-diazepine ring condensed with a pyrazolo-[5,1-c]-as-triazine fragment. It highlights that Azo coupling of pyrazolediazonium salt with esters of acetonedicarboxylic acid by a stage involving cyclization of the hydrazones provided new pyrazolo[5,1-c][1,2,4]triazines. It shows that cyclocondensation of triazines with hydrazine hydrate proceeded to give two regioisomers.
- Subjects
DIAZEPINES; TRIAZINES; RING formation (Chemistry); HETEROCYCLIC compounds; PYRAZOLES; CONDENSATION; ESTERS
- Publication
Chemistry of Heterocyclic Compounds, 2009, Vol 45, Issue 2, p248
- ISSN
0009-3122
- Publication type
Article
- DOI
10.1007/s10593-009-0256-0